python - django indexerror - deleteview의 빈 목록에서 팝업

Django 앱의 데이터베이스에서 객체를 삭제하려고합니다.

아이디어는 html 파일에서 기본을 가져 와서 양식에 게시하는 것입니다. 삭제 요청을 올바른 방법으로 게시하기 위해 기본 키를 전달하는 방법을 이해하지 못합니다.

클래스 기반 뷰 DeleteView에 대해 찾은 모든 것에 갔다. 스택 오버 플로우, 장고 문서 및 기타 소스 모두에서 이것이 어떻게 작동하는지 파악하지 못했습니다.

예 : 장고 삭제 파일 필드

Django 모델에서 레코드를 삭제하는 방법?

Python Django는 현재 객체를 삭제합니다

Django 모델에서 레코드를 삭제하는 방법?

https://docs.djangoproject.com/en/2.2/ 토픽/db/queries/

https://docs.djangoproject.com/en/2.2/ref/class-based-views/generic-editing/#django.views.generic.edit.DeleteView

코드의 주요 스 니펫 아래에 필요한 정보가 없으면 알려주세요.

views.py

class SelectFileDelView(TemplateView):
    """
    This view is used to select a file from the list of files in the server.
    After the selection, it will send the file to the server.
    The server will then delete the file.
    """
    template_name = 'select_file_deletion.html'
    parser_classes = FormParser
    queryset = FileModel.objects.all()
    def get_context_data(self, **kwargs):
        """
        This function is used to render the list of files in the MEDIA_ROOT in the html template
        and to get the pk (primary key) of each file.
        """
        context = super().get_context_data(**kwargs)
        media_path = settings.MEDIA_ROOT
        myfiles = [f for f in listdir(media_path) if isfile(join(media_path, f))]
        pk_list = []
        for value in myfiles:
            pk = FileModel.objects.filter(file=value).values_list('pk', flat=True)
            pk_list.append(pk)
        file_and_pk = zip(myfiles, pk_list)
        context['filename'] = file_and_pk
        return context

class FileDeleteView(DeleteView):
    """
    This class contains the method to delete a file interacting directly with the API.
    DELETE requests are accepted.
    """
    model = FileModel
    fields = ['file']
    template_name = 'delete_success.html'
    success_url = '/delete_success/'
    def post(self, request):
        """
        This method is used to making predictions on audio files
        loaded with FileView.post
        """
        pk = request.POST.getlist('pk').pop()
        try:
            return Response(pk, status=status.HTTP_200_OK)
        except ValueError as err:
            return Response(str(err), status=status.HTTP_400_BAD_REQUEST)

select_file_deletion.html

{% extends "index.html" %}
{% block content %}
    <form action="/App/delete/" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        {{ form.as_p }}
        <h5>Please select one file at a time from the list below to delete it from the server.</h5>
        {% for myfile, pk in filename %}
            <p>Are you sure you want to delete "{{ myfile }}"?</p>
            <input type="submit" value="Confirm">
            <input type="hidden" name="pk" value="{{ pk }}">
            <br>
        {% endfor %}
        <br>
    </form>
{% endblock %}

urls.py

urlpatterns = [
    # Url to select a file to be deleted and confirm the upload
    url('filedelete/', SelectFileDelView.as_view(), name='file_delete'),
    url('delete_success/(?P<pk>\d+)/$', FileDeleteView.as_view(), name='delete_success'),
]

models.py

"""
Models.py includes the database structure of the application.
"""
from django.db import models
from django.conf import settings
from django.dispatch import receiver
from django.db.models.signals import post_delete

class FileModel(models.Model):
    file = models.FileField(null=True, blank=True)
    timestamp = models.DateTimeField(auto_now_add=True)
    path = models.FilePathField(path=settings.MEDIA_ROOT, default=settings.MEDIA_ROOT)

@receiver(post_delete, sender=FileModel)
def submission_delete(sender, instance, **kwargs):
    """
    This function is used to delete attachments when a file object is deleted.
    Django does not do this automatically.
    """
    instance.file.delete(False)

오류:

IndexError at /App/delete/
pop from empty list
Request Method: POST
Request URL:    http://127.0.0.1:8000/App/delete/
Django Version: 2.2.4
Exception Type: IndexError
Exception Value:    
pop from empty list
Exception Location: /Users/marcogdepinto/PycharmProjects/DjangoRestDeepLearning/App/views.py in post, line 131
Python Executable:  /Users/marcogdepinto/anaconda3/bin/python
Python Version: 3.6.9

UPDATE1: HTML이 아래와 같이 변경되었습니다

<input type="hidden" name="pk" value="{{ pk }}">

이 작업을 수행하면

AssertionError at /App/delete/
.accepted_renderer not set on Response

아래의 전체 역 추적 :

Environment:
Request Method: POST
Request URL: http://127.0.0.1:8000/App/delete/
Django Version: 2.2.4
Python Version: 3.6.9
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'rest_framework',
 'App',
 'debug_toolbar']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware']

Traceback:
File "/Users/marcogdepinto/anaconda3/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)
File "/Users/marcogdepinto/anaconda3/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  145.                 response = self.process_exception_by_middleware(e, request)
File "/Users/marcogdepinto/anaconda3/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  143.                 response = response.render()
File "/Users/marcogdepinto/anaconda3/lib/python3.6/site-packages/django/template/response.py" in render
  106.             self.content = self.rendered_content
File "/Users/marcogdepinto/anaconda3/lib/python3.6/site-packages/rest_framework/response.py" in rendered_content
  55.         assert renderer, ".accepted_renderer not set on Response"
Exception Type: AssertionError at /App/delete/
Exception Value: .accepted_renderer not set on Response